POLYBROMINATED DIPHENYL ETHERS IN SEAWATER CAGE-FARMED FISH FROM TWO ESTUARINE BAYS IN SOUTH CHINA: IMPLICATIONS FOR SOURCE INPUTS AND BIOTRANSFORMATION
Polybrominated diphenyl ethers (PBDEs) were measured in two seawater farmed fish species, crimson snapper and snubnose pompano, and their semi-digested stomach contents from two estuarine bays of South China. The concentrations of PBDEs were higher in crimson snapper than in snubnose pompano at the same lipid content levels, and increased with increasing fish weight and body length in both fish species. The different relative abundances of BDE congeners in two fish species were attributed mainly to the different feeds used (marine compound feed for snubnose pompano and trash fish for crimson snapper). The results indicate that PBDEs in fish feeds were the main source of PBDEs in seawater farmed fish species in South China. In addition, the values of BDE-99/BDE-100 were variable in fish species, semi-digested stomach contents and fish feeds, indicating the likelihood for biotransformation of BDE-99 to BDE-47 in fish, and snubnose pompano seemed to have higher ability to debrominate BDE-99 than crimson snapper. Furthermore, significantly higher abundances of BDE-183, -154, 153 and -126 in snubnose pompano than in its semi-digested stomach contents and marine compound feed in which BDE-209 was ubiquitous demonstrated that BDE-209 could be bioaccumulated and debrominated by fish species in actual environments.
Ying Guo Huan-Yun Yu Ru-Lang Shen Eddy Y.Zeng
State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of
国际会议
北京
英文
1-5
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）